基本解釋[機械工程]螺紋接頭英漢例句雙語例句When the nut is screwed to the valve threads, it pulls the nipple into the valve outlet compressing the washer between the two beads.當螺母擰到閥門螺紋上時，它把管接口推進閥門排氣口，壓縮在兩個墊珠之間的墊圈。www.airproducts.com.cnscrewed nipple更多例句專業(yè)釋義機械工程螺紋接頭